Delegate identity v2 extensions to common.
diff --git a/openstack/identity/v2/extensions/delegate.go b/openstack/identity/v2/extensions/delegate.go
new file mode 100644
index 0000000..d08e1fd
--- /dev/null
+++ b/openstack/identity/v2/extensions/delegate.go
@@ -0,0 +1,41 @@
+package extensions
+
+import (
+ "github.com/rackspace/gophercloud"
+ common "github.com/rackspace/gophercloud/openstack/common/extensions"
+ "github.com/rackspace/gophercloud/pagination"
+)
+
+// Extension is a single OpenStack extension.
+type Extension struct {
+ common.Extension
+}
+
+// GetResult wraps a GetResult from common.
+type GetResult struct {
+ common.GetResult
+}
+
+// ExtractExtensions interprets a Page as a slice of Extensions.
+func ExtractExtensions(page pagination.Page) ([]Extension, error) {
+ inner, err := common.ExtractExtensions(page)
+ if err != nil {
+ return nil, err
+ }
+ outer := make([]Extension, len(inner))
+ for index, ext := range inner {
+ outer[index] = Extension{ext}
+ }
+ return outer, nil
+}
+
+// Get retrieves information for a specific extension using its alias.
+func Get(c *gophercloud.ServiceClient, alias string) GetResult {
+ return GetResult{common.Get(c, alias)}
+}
+
+// List returns a Pager which allows you to iterate over the full collection of extensions.
+// It does not accept query parameters.
+func List(c *gophercloud.ServiceClient) pagination.Pager {
+ return common.List(c)
+}